A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6650-00-481-2474
NSN 5950-01-448-1771
NSN 6610-01-542-2276
NSN 6105-01-471-2628
NSN 5960-00-449-3358
NSN 5925-00-708-8769
NSN 5935-01-189-9361
NSN 5960-01-543-0235
NSN 6110-00-007-6453
NSN 6320-01-161-6640
NSN 5920-00-254-4844
NSN 5950-00-586-3564